First observation of the drip line nucleus 140Dy: Identification of a 7 μs K isomer populating the ground state band

W. Królas; R. Grzywacz; K. P. Rykaczewski; J. C. Batchelder; C. R. Bingham; C. J. Gross; D. Fong; J. H. Hamilton; D. J. Hartley; J. K. Hwang; Y. Larochelle; T. A. Lewis; K. H. Maier; J. W. McConnell; A. Piechaczek; A. V. Ramayya; K. Rykaczewski; D. Shapira; M. N. Tantawy; J. A. Winger; C. H. Yu; E. F. Zganjar; A. T. Kruppa; W. Nazarewicz; T. Vertse

doi:10.1103/physrevc.65.031303

First observation of the drip line nucleus ¹⁴⁰Dy: Identification of a 7 μs K isomer populating the ground state band

W. Królas
, R. Grzywacz
, K. P. Rykaczewski
, J. C. Batchelder
, C. R. Bingham
, C. J. Gross
, D. Fong
, J. H. Hamilton
, D. J. Hartley
, J. K. Hwang
, Y. Larochelle
, T. A. Lewis
, K. H. Maier
, J. W. McConnell
, A. Piechaczek
, A. V. Ramayya
, K. Rykaczewski
, D. Shapira
, M. N. Tantawy
, J. A. Winger

C. H. Yu, E. F. Zganjar, A. T. Kruppa, W. Nazarewicz, T. Vertse

Neutrino Research

Research output: Contribution to journal › Article › peer-review

49 Scopus citations

Abstract

A new 7 μs isomer in the drip line nucleus ¹⁴⁰Dy was selected from the products of the ⁵⁴Fe (315 MeV) + ⁹²Mo reaction by a recoil mass spectrometer and studied with recoil-delayed γ-γ coincidences. Five cascading γ transitions were interpreted as the decay of an I^π = 8^- {ν9/2^-[514]⊗ ν7/2⁺[404]} Kisomer (T _1/2 = 7.0(5) μs) via the ground-state band. The probability of proton emission from ¹⁴¹Ho to the 0⁺ ground state and to the 2⁺ excited state in ¹⁴⁰Dy is discussed.

Original language	English
Article number	031303
Pages (from-to)	313031-313034
Number of pages	4
Journal	Physical Review C - Nuclear Physics
Volume	65
Issue number	3
DOIs	https://doi.org/10.1103/physrevc.65.031303
State	Published - Mar 1 2002

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Królas, W., Grzywacz, R., Rykaczewski, K. P., Batchelder, J. C., Bingham, C. R., Gross, C. J., Fong, D., Hamilton, J. H., Hartley, D. J., Hwang, J. K., Larochelle, Y., Lewis, T. A., Maier, K. H., McConnell, J. W., Piechaczek, A., Ramayya, A. V., Rykaczewski, K., Shapira, D., Tantawy, M. N., ... Vertse, T. (2002). First observation of the drip line nucleus ¹⁴⁰Dy: Identification of a 7 μs K isomer populating the ground state band. Physical Review C - Nuclear Physics, 65(3), 313031-313034. Article 031303. https://doi.org/10.1103/physrevc.65.031303

@article{2d862ce374354b67b700098a254ab6b9,

title = "First observation of the drip line nucleus 140Dy: Identification of a 7 μs K isomer populating the ground state band",

abstract = "A new 7 μs isomer in the drip line nucleus 140Dy was selected from the products of the 54Fe (315 MeV) + 92Mo reaction by a recoil mass spectrometer and studied with recoil-delayed γ-γ coincidences. Five cascading γ transitions were interpreted as the decay of an Iπ = 8- \{ν9/2-[514]⊗ ν7/2+[404]\} Kisomer (T 1/2 = 7.0(5) μs) via the ground-state band. The probability of proton emission from 141Ho to the 0+ ground state and to the 2+ excited state in 140Dy is discussed.",

author = "W. Kr{\'o}las and R. Grzywacz and Rykaczewski, \{K. P.\} and Batchelder, \{J. C.\} and Bingham, \{C. R.\} and Gross, \{C. J.\} and D. Fong and Hamilton, \{J. H.\} and Hartley, \{D. J.\} and Hwang, \{J. K.\} and Y. Larochelle and Lewis, \{T. A.\} and Maier, \{K. H.\} and McConnell, \{J. W.\} and A. Piechaczek and Ramayya, \{A. V.\} and K. Rykaczewski and D. Shapira and Tantawy, \{M. N.\} and Winger, \{J. A.\} and Yu, \{C. H.\} and Zganjar, \{E. F.\} and Kruppa, \{A. T.\} and W. Nazarewicz and T. Vertse",

note = "Publisher Copyright: {\textcopyright} 2002 The American Physical Society.",

year = "2002",

month = mar,

day = "1",

doi = "10.1103/physrevc.65.031303",

language = "English",

volume = "65",

pages = "313031--313034",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

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}

Królas, W, Grzywacz, R, Rykaczewski, KP, Batchelder, JC, Bingham, CR, Gross, CJ, Fong, D, Hamilton, JH, Hartley, DJ, Hwang, JK, Larochelle, Y, Lewis, TA, Maier, KH, McConnell, JW, Piechaczek, A, Ramayya, AV, Rykaczewski, K, Shapira, D, Tantawy, MN, Winger, JA, Yu, CH, Zganjar, EF, Kruppa, AT, Nazarewicz, W & Vertse, T 2002, 'First observation of the drip line nucleus ¹⁴⁰Dy: Identification of a 7 μs K isomer populating the ground state band', Physical Review C - Nuclear Physics, vol. 65, no. 3, 031303, pp. 313031-313034. https://doi.org/10.1103/physrevc.65.031303

TY - JOUR

T1 - First observation of the drip line nucleus 140Dy

T2 - Identification of a 7 μs K isomer populating the ground state band

AU - Królas, W.

AU - Grzywacz, R.

AU - Rykaczewski, K. P.

AU - Batchelder, J. C.

AU - Bingham, C. R.

AU - Gross, C. J.

AU - Fong, D.

AU - Hamilton, J. H.

AU - Hartley, D. J.

AU - Hwang, J. K.

AU - Larochelle, Y.

AU - Lewis, T. A.

AU - Maier, K. H.

AU - McConnell, J. W.

AU - Piechaczek, A.

AU - Ramayya, A. V.

AU - Rykaczewski, K.

AU - Shapira, D.

AU - Tantawy, M. N.

AU - Winger, J. A.

AU - Yu, C. H.

AU - Zganjar, E. F.

AU - Kruppa, A. T.

AU - Nazarewicz, W.

AU - Vertse, T.

PY - 2002/3/1

Y1 - 2002/3/1

N2 - A new 7 μs isomer in the drip line nucleus 140Dy was selected from the products of the 54Fe (315 MeV) + 92Mo reaction by a recoil mass spectrometer and studied with recoil-delayed γ-γ coincidences. Five cascading γ transitions were interpreted as the decay of an Iπ = 8- {ν9/2-[514]⊗ ν7/2+[404]} Kisomer (T 1/2 = 7.0(5) μs) via the ground-state band. The probability of proton emission from 141Ho to the 0+ ground state and to the 2+ excited state in 140Dy is discussed.

AB - A new 7 μs isomer in the drip line nucleus 140Dy was selected from the products of the 54Fe (315 MeV) + 92Mo reaction by a recoil mass spectrometer and studied with recoil-delayed γ-γ coincidences. Five cascading γ transitions were interpreted as the decay of an Iπ = 8- {ν9/2-[514]⊗ ν7/2+[404]} Kisomer (T 1/2 = 7.0(5) μs) via the ground-state band. The probability of proton emission from 141Ho to the 0+ ground state and to the 2+ excited state in 140Dy is discussed.

UR - https://www.scopus.com/pages/publications/4244085878

U2 - 10.1103/physrevc.65.031303

DO - 10.1103/physrevc.65.031303

M3 - Article

AN - SCOPUS:4244085878

SN - 0556-2813

VL - 65

SP - 313031

EP - 313034

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 031303

ER -

First observation of the drip line nucleus ¹⁴⁰Dy: Identification of a 7 μs K isomer populating the ground state band

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